Do I need to drain water from the car door myself?
2 Answers
Under normal circumstances, you do not need to drain water from the car door yourself. Here is some additional information: 1. Automatic drainage: All vehicles are equipped with drainage valves at the bottom edge of the doors when they leave the factory. Typically, each door has three drainage valves. Under normal conditions, when the door is closed, the drainage valves are pressed and automatically open, allowing water to drain automatically. This means you don't need to intervene, as the drainage valves will automatically remove any accumulated water inside the door. 2. Manual drainage: However, if the door is deformed or if dust, asphalt, mud, or other debris accumulates around the valves, it can cause blockages and affect the drainage rate. In such cases, you may need to press the drainage valve manually to widen the gap, allowing the water to drain more easily.
Water accumulation inside car doors is no trivial matter and should not be ignored. Prolonged water retention can cause internal metal components to rust and corrode, potentially leading to door frame deformation over time. Even worse, short circuits in wiring or moisture damage to speakers can trigger electrical issues, and windows may become stuck. I remember my old car once required an 800-yuan repair due to rust caused by water buildup. The solution is simple: locate the small drainage holes at the bottom of the door and carefully unclog them using thin wire or a straw to drain the water. When doing it yourself, handle gently to avoid damaging plastic parts. For severe water accumulation or if unsure, visit a repair shop—a mechanic can resolve it in ten minutes at minimal cost and safely. During regular car washes, take a moment to check these drainage holes—it saves time and hassle.
